Can exercise help prevent cancer?

Simple lifestyle changes, including increased exercise, could potentially prevent a third of all common cancers, according to the American Institute for Cancer Research and the World Cancer Research Fund (WCRF).

"It is distressing that even in 2011, people are dying unnecessarily from cancers that could be prevented through maintaining a healthy weight, diet, physical activity, and other lifestyle factors," Martin Wiseman, a WCRF medical and scientific adviser, told Reuters news.

In a separate statement, the World Health Organization (WHO) said that lack of exercise is the main cause of 21%-25% of breast and colon cancers, 27% of diabetes, and 30% of heart disease all over the world.

WHO recommends a minimum of 150 minutes of exercise per week. That's five 30-minute workouts -- not much when you think about it.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.